background:
radial-gradient(circle at 100% 50%, transparent 20%, rgba(255,255,255,.3) 21%, rgba(255,255,255,.3) 34%, transparent 35%, transparent),
radial-gradient(circle at 0% 50%, transparent 20%, rgba(255,255,255,.3) 21%, rgba(255,255,255,.3) 34%, transparent 35%, transparent) 0 -50px
background-color: slategray
background-size:75px 100px
}
更多背景底纹私聊我给你网址,有好多
解压,运行index.html文件即可
兼容:FireFox、Chrome、Safari、Opera等支持HTML5/CSS3浏览器
如果满意请采纳,谢谢~~~~~~~~~~~~